# CVE-2026-102258 — SonicWall SMA1000

> As of 2026-10-07, CVE-2026-102258 is a MEDIUM-severity vulnerability in SonicWall SMA1000, CVSS v3.1 6.1, EPSS 0.3% (31.3th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-102258, most recently “SonicWall SMA1000 Pre-Auth SSRF (CVE-2026-102255, CVSS 10.0) and Critical Splunk Enterprise Vulnerabilities (CVE-2026-76268, CVE-2026-76281, CVE-2026-76284) Patched”.

**Last updated:** 2026-10-07

## What is CVE-2026-102258?

Post-authentication Stored Cross-Site Scripting (XSS) vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to store and potentially execute arbitrary JavaScript code in the Appliance Management Console (AMC).

The record classifies CVE-2026-102258 under weakness class [CWE-79](https://intel.threadlinqs.com/cwe/CWE-79). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 3 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.1 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 31.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-07

## Is CVE-2026-102258 being exploited?

It currently carries a trending score of 47 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [SonicWall](https://intel.threadlinqs.com/vendors/sonicwall): SMA1000

## How to fix CVE-2026-102258

No vendor patch reference has been recorded for CVE-2026-102258 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-102258

2 tracked threats in the Threadlinqs corpus reference CVE-2026-102258, either in the campaign’s CVE list or as an indicator on the campaign record.

- [SonicWall SMA1000 Pre-Auth SSRF (CVE-2026-102255, CVSS 10.0) and Critical Splunk Enterprise Vulnerabilities (CVE-2026-76268, CVE-2026-76281, CVE-2026-76284) Patched](https://intel.threadlinqs.com/threat/TL-2026-3176) — CRITICAL · 2026-10-08
- [SonicWall SMA1000 Four Flaws Patched Incl. Critical Pre-Auth SSRF CVE-2026-102255 (CVSS 10.0)](https://intel.threadlinqs.com/threat/TL-2026-3022) — CRITICAL · 2026-10-07

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [psirt.global.sonicwall.com — vendor advisory](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0017)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-102258
Full detection coverage and IOCs for threats exploiting CVE-2026-102258 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp